package com.lzh.gulimall.order.web;

import com.lzh.gulimall.order.service.OrderService;
import com.lzh.gulimall.order.vo.OrderConfirmVo;
import com.lzh.gulimall.order.vo.OrderSubmitVo;
import com.lzh.gulimall.order.vo.SubmitOrderResponseVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.concurrent.ExecutionException;

/**
 * @ClassName OrderWebController
 * @Description TODO
 * @Author liuzhihui
 * @Date 2020/9/4 0:07
 * @Version 1.0
 **/
@Controller
public class OrderWebController {

    @Autowired
    private OrderService orderService;
    /**
     * 去结算确认页
     * @param model
     * @param request
     * @return
     * @throws ExecutionException
     * @throws InterruptedException
     */
    @GetMapping(value = "/toTrade")
    public String toTrade(Model model, HttpServletRequest request) throws ExecutionException, InterruptedException {

        OrderConfirmVo confirmVo = orderService.confirmOrder();

        model.addAttribute("confirmOrderData",confirmVo);
        //展示订单确认的数据

        return "confirm";
    }

    /**
     * 下单功能
     * @param orderSubmitVo
     * @return
     */
    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo orderSubmitVo,Model model, RedirectAttributes attributes){
        //下单，去创建订单，验令牌，验价格，锁库存
        SubmitOrderResponseVo submitOrderResponseVo=orderService.submitOrder(orderSubmitVo);

        if (submitOrderResponseVo.getCode()==0){
            model.addAttribute("submitOrderResp",submitOrderResponseVo);
            //下单成功来到支付选择页面
            return "pay";
        }else {
            //下单失败回到订单确认页重新确认订单信息
            String msg = "下单失败";
            switch (submitOrderResponseVo.getCode()) {
                case 1: msg += "令牌订单信息过期，请刷新再次提交"; break;
                case 2: msg += "订单商品价格发生变化，请确认后再次提交"; break;
                case 3: msg += "库存锁定失败，商品库存不足"; break;
            }
            attributes.addFlashAttribute("msg",msg);
            return "redirect:http://order.gulimall.com/toTrade";
        }

    }

}
